Re: [I] Invalid ColumnVectorBatch access when fetch from std::vector which construct from a loop with RowReader::next [orc]

[via GitHub]

ZhangHuiGui commented on issue #2201:
URL: https://github.com/apache/orc/issues/2201#issuecomment-2830243816

   I think there is a bug in StringDictionaryColumnReader which is the 
`c_mktsegment`'s column reader type in the example.
   
   The ColumnVectorBatch's data fetched from 
`StringDictionaryColumnReader::next` is hold by `dictionary_`, when we switch 
stripe and reset the ColumnReader, the `dictionary_` and it's data will be 
reset either.
   
   <img width="836" alt="Image" 
src="https://github.com/user-attachments/assets/81796883-5aee-444f-969e-0b1ec0893022";
 />


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